fix: Update index.ts license header

Adds license header

Author: willum070

samples/place-autocomplete-element/index.ts

@@ -1,8 +1,18 @@
-/**
- * @license
- * Copyright 2022 Google LLC. All Rights Reserved.
- * SPDX-License-Identifier: Apache-2.0
- */
+/*
+ * Copyright 2025 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+*/
 
 // [START maps_place_autocomplete_element]
 async function initMap(): Promise<void> {
@@ -41,4 +51,4 @@ async function initMap(): Promise<void> {
 
 initMap();
 // [END maps_place_autocomplete_element]
-export { };
+export { };